Horizontal machining hydraulic clamp for complex aluminum shell

Abstract

The utility model relates to a horizontal machining hydraulic clamp for a complex aluminum shell. The horizontal machining hydraulic clamp comprises a bottom plate and a vertical plate arranged on the bottom plate. A lever hydraulic cylinder is arranged on the bottom plate; a plurality of sequence valves are arranged on the bottom plate; an oil path block is arranged at one corner of the bottom plate; a left quick-change connector and a right quick-change connector are arranged on the side face of the oil path block. An energy accumulator is arranged on the bottom plate; a first random through hole and a second random through hole are formed in the vertical plate; a third corner hydraulic cylinder and two first corner hydraulic cylinders are arranged on the side face of the vertical plate. A long-arm quick clamp is arranged on the right upper side of the vertical plate; two linear clamping cylinders are embedded in the side face of the vertical plate. Horizontal positioning plates are arranged on the side surfaces of the vertical plates; first positioning nails are respectively arranged at two ends of the horizontal positioning plate; a second corner hydraulic cylinder is arranged on the upper side of the bottom plate; a third external thread type supporting cylinder is arranged at the end part of a rotary pressing plate of the second corner hydraulic cylinder; the top of the third external thread type supporting cylinder penetrates through the rotary pressing plate; a second external thread type supporting cylinder is embedded in the upper side of the vertical plate. The device is convenient and quick to assemble and disassemble, stable, reliable and high in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing fixtures, in particular to a horizontal hydraulic fixture for complex aluminum shells. Background Art

[0002] Maritime equipment is updated very quickly, and high requirements are constantly being put forward in terms of stability, lifespan, and deadweight. Engine components, in particular, are the most critical of the critical ones. The aluminum shell is made of aluminum, and the shape and position tolerances of the positioning holes and mounting surfaces of the installation parts have reached a precision level. Ordinary processing equipment and processing technology cannot meet the requirements at all. Figure 6-8 As shown, the complex shape of aluminum shells, high processing precision, multiple processing angles, easy deformation of aluminum materials, high scrap rate, low overall manufacturing efficiency and many other problems are plaguing manufacturers one by one and are currently problems that need to be solved urgently.

[0003] Due to the large and irregular shape of aluminum housings, the existing process involves machining the large end face first, then turning it over to machine the smaller end face. This requires relatively simple fixtures and allows for relatively easy commissioning of the product on a horizontal machining center. However, the surfaces and holes on both ends cannot be machined in a single process, reducing the geometric tolerances between them and, in turn, the precision level of the aluminum housing. Furthermore, multi-process machining significantly increases the risk of dimensional deviations caused by clamping deformation and collisions caused by multiple rotations, reducing quality and increasing costs. In summary, the existing process and fixtures are fundamentally uncompetitive and cannot meet the increasingly demanding requirements of aluminum housing products. Utility Model Content

[0004] The utility model mainly solves the technical problems of the existing technology such as difficult processing and inability to process multiple surfaces of the product at one time, and proposes a horizontal hydraulic clamp for complex aluminum shells, which can complete the processing of all surfaces and holes on both ends of the aluminum shell at one time, meets the high-precision requirements of the aluminum shell product size, and is convenient and fast to load and unload, stable and reliable, and efficient.

[0005] In order to solve the above problems, a horizontal hydraulic clamp for complex aluminum shells was designed, and a high-precision horizontal machining center was selected. This clamp uses a bottom plate and a vertical plate to form a bent plate structure. The bottom plate is connected to the workbench, and different positioning mechanisms are set on the vertical plate to position and place the large end of the aluminum shell product. This clamping can complete the processing of both ends of the aluminum shell in one process. The shape and position tolerance requirements of the processing surfaces and holes on these two ends are the most stringent. The rotation function of the horizontal machining center workbench can well guarantee the processing accuracy of both ends. The aluminum shell has a complex shape and is more prone to deformation after clamping, which in turn affects the processing accuracy of the product.

[0006] For this purpose, the fixture is provided with a first angle hydraulic cylinder that cooperates with the outer flange of the aluminum shell, a second angle hydraulic cylinder that cooperates with the inside of the aluminum shell, and a lever hydraulic clamping cylinder that cooperates with the lower flange of the aluminum shell for clamping. In particular, a rotatable first external threaded support cylinder is provided to cooperate with the distal end.

[0007] The above design ensures effective clamping of the aluminum shell while preventing deformation. This fixture utilizes hydraulic cylinders for both positioning and clamping, resulting in rapid and error-free operation, greatly improving machining efficiency, stabilizing production, and significantly increasing the yield rate. The advantages across these areas are evident. In summary, this fixture solution can be applied to most horizontal machining centers, offering widespread adoption and fundamentally resolving the aforementioned challenges.

[0008] The utility model relates to a horizontal hydraulic clamp for complex aluminum shells. The clamp mainly comprises a bent plate structure composed of a high-rigidity base plate and a vertical plate, multi-point positioning, reasonably distributed clamping, a rotatable first external threaded support cylinder, a coarse limit plate and a coarse limit rod that can prevent errors, a high-safety long-arm quick clamp, a long-life hydraulic component and other functions. It is directly installed on a horizontal machining center for use, and can complete the processing of all surfaces and holes on both ends of the aluminum shell at one time, meeting the high-precision requirements of the aluminum shell product size. The clamp is convenient and fast to load and unload, stable and reliable, and efficient, and is a very preferred solution.

[0009] This fixture is achieved by combining a base plate and vertical plates in a bent plate structure. After extensive aging and heat treatment, it can withstand the cutting forces and vibrations required by the process while effectively controlling deformation of the aluminum housing product. A first, contoured through-hole is hollowed out in the center of the vertical plate, while a second, contoured through-hole is located at the upper end. Its shape follows the shape of the aluminum housing product, effectively avoiding any kinks and enabling optimal machining of the surface and hole on the large end of the aluminum housing. Ribs are installed on the sides of the vertical plates to ensure sufficient rigidity for the bent plate structure. A complex internal oil circuit ensures the effective operation of all hydraulic components.

[0010] Multi-point positioning: Two first positioning blocks are embedded at the edge of the first conformal through-hole in the vertical plate, and a second positioning block is embedded above the first conformal through-hole. The positioning surfaces of the first and second positioning blocks are textured to increase friction after contact with the aluminum shell blank surface, ensuring more secure positioning. A horizontal positioning plate is installed above the first conformal through-hole to position the aluminum shell horizontally. Multi-point positioning meets the blank reference requirements, ensuring more precise and accurate positioning of the machined surface and the relationship between the hole and the blank surface.

[0011] For optimally distributed clamping, two first-angle hydraulic clamping cylinders and one third-angle hydraulic clamping cylinder are located at the corresponding positions of the first and second positioning blocks of the first conformal through-hole, respectively. These cylinders serve as primary clamping. Three lever hydraulic clamping cylinders are also located at the edge of the aluminum shell's lower flange for auxiliary clamping. One of the third-angle hydraulic cylinders can be positioned internally when the aluminum shell is placed on the vertical plate, fully demonstrating the advantages of hydraulic clamps. Furthermore, two linear clamping cylinders are located opposite the horizontal positioning plate to securely clamp the aluminum shell to the positioning points. This clamping solution ensures sufficient clamping force for the aluminum shell during processing, ensuring stable processing throughout.

[0012] The rotatable circumferential support is a critical design. When boring the small end of the upper part of the aluminum shell, if this part is not fully and effectively supported, it will inevitably cause the product to deform and fail to meet the processing size requirements. In addition, considering the convenience of loading and unloading the product, this fixture is completed by combining a second angle hydraulic cylinder 30 and two second externally threaded support cylinders. The first externally threaded support cylinder is set on the pressure plate of the second angle hydraulic cylinder. When the product is clamped, the second angle hydraulic cylinder first rotates the first externally threaded support cylinder to the outside of the product, and then the second externally threaded support cylinder is activated, and the top of the second externally threaded support cylinder contacts the blank surface of the aluminum shell. In addition, the two second externally threaded support cylinders set on both sides of the small end also operate at the same time, and their tops also contact the blank surface of the aluminum shell. The all-round support makes the aluminum shell product more stable and reliable during the processing process.

[0013] The coarse limit rods and coarse limit plates can prevent errors. Two coarse limit rods are set at the upper part and two coarse limit plates are set at the lower part. When the product is hoisted in, the product is restricted to a very small range. Moreover, the above are all set according to the shape. The product can only be loaded in the only way, which plays a role in preventing errors.

[0014] High-safety long-arm quick clamps. When the aluminum shell product is hoisted into the fixture, it is placed upright. If you are not careful, the product will fall, causing damage or even personal injury. For this reason, a long-arm quick clamp is set. The clamping point is in the upper middle part of the aluminum shell product. Before the hoist is withdrawn, it is clamped with a long-arm quick clamp, which effectively eliminates the risk of the product falling and is safe and reliable.

[0015] The utility model provides a horizontal hydraulic clamp for a complex aluminum shell, comprising a bottom plate and a vertical plate arranged on the bottom plate;

[0016] Three lever hydraulic cylinders are provided on the bottom plate; a plurality of sequence valves are provided on the bottom plate; an oil circuit block is provided at one corner of the bottom plate; a left quick-change joint and a right quick-change joint are provided on the sides of the oil circuit block; an accumulator is provided on the upper side of the bottom plate;

[0017] A first and a second conformal through hole are respectively provided on the vertical plate; a third angle hydraulic cylinder and two first angle hydraulic cylinders are respectively provided on the side surface of the vertical plate and the circumference of the first conformal through hole; a long-arm quick clamp is provided on the upper right side of the vertical plate; two linear clamping cylinders are symmetrically embedded on the side surface of the vertical plate and the upper end of the first conformal through hole;

[0018] A horizontal positioning plate is provided on the side of the vertical plate and the upper side of the third corner hydraulic cylinder; first positioning pins are respectively provided at both ends of the horizontal positioning plate; a second corner hydraulic cylinder is provided on the upper side of the bottom plate; a third externally threaded support cylinder is provided at the end of the rotating pressure plate of the second corner hydraulic cylinder; the top head of the third externally threaded support cylinder passes through the rotating pressure plate; second externally threaded support cylinders are respectively embedded on the upper side of the vertical plate and on both sides of the second corner hydraulic cylinder.

[0019] Furthermore, a second positioning block and two first positioning blocks are embedded in the side surface of the vertical plate.

[0020] Furthermore, a textured surface is provided on the top of each of the first positioning block and the second positioning block.

[0021] Furthermore, two coarse limiting plates are symmetrically arranged on the bottom plate.

[0022] Furthermore, the lever hydraulic cylinder is arranged on the vertical plate through a mounting base; auxiliary support cylinders are arranged on the sides of the mounting base and the lever hydraulic cylinder; a second positioning pin and a floating support rod are arranged in parallel on the top of the middle mounting base.

[0023] Furthermore, a coarse limiting rod is provided on the vertical plate and on the lower side of the second externally threaded support cylinder.

[0024] Furthermore, the movable end of the long-arm quick clamp can be located on the upper end of the pressure plate of the third angle hydraulic cylinder.

[0025] Furthermore, a rib plate is provided between the vertical plate and the bottom plate.

[0026] Compared with the existing technology, the horizontal hydraulic clamp for complex aluminum shells provided by this utility model has the following advantages:

[0027] 1. This new bending plate is primarily composed of a base plate and a vertical plate. After extensive aging and heat treatment, it can withstand the cutting forces and vibrations required by the process while effectively controlling the deformation of the aluminum housing. The vertical plate is hollowed out in the middle, and its shape follows the shape of the aluminum housing, effectively avoiding any kinks. This allows for simultaneous machining of the surface and holes on the large end of the aluminum housing, increasing work efficiency and reducing the need for multiple clamping.

[0028] 2. The device of this utility model is simple to operate, has high precision, high production efficiency, is stable and reliable, and has strong versatility and wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is the front view of the hydraulic clamp of the utility model installed in the aluminum shell product;

[0030] Figure 2 This is a rear view of the hydraulic clamp of the utility model installed in the aluminum shell product;

[0031] Figure 3 This is the front view of the hydraulic clamp of the utility model without being installed in the aluminum shell product;

[0032] Figure 4 yes Figure 3 Enlarged view of the upper part;

[0033] Figure 5 This is a rear view of the hydraulic clamp of the utility model without being installed in the aluminum housing;

[0034] Figure 6 This is the main view of the aluminum shell product of the utility model;

[0035] Figure 7 This is a bottom view of the aluminum shell product of the utility model;

[0036] Figure 8 This is the rear view of the aluminum shell product of the utility model;

[0037] Reference numerals: 1, workbench; 2, bottom plate; 3, square flange; 5, coarse limit plate; 6, side; 7, coarse limit rod; 8, large bottom surface; 9, first positioning block; 10, second positioning block; 11, horizontal positioning surface; 12, horizontal positioning plate; 13, first positioning pin; 14, arc surface in groove; 15, second positioning pin; 16, auxiliary support cylinder; 17, floating support rod; 19, long arm quick clamp; 20, oil block; 2 1. Right quick-change connector; 22. Left quick-change connector; 23. Switch valve; 25. Linear clamping cylinder; 27. Sequence valve; 28. First angle hydraulic cylinder; 29. ​​Third angle hydraulic cylinder; 30. Second angle hydraulic cylinder; 31. Rotary pressure plate; 32. First external threaded support cylinder; 35. Blank surface; 36. Second external threaded support cylinder; 38. Circumferential blank surface; 39. Lever hydraulic cylinder; 41. Vertical plate; 42. Accumulator. DETAILED DESCRIPTION

[0038] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, rather than all of its contents.

[0039] like Figure 1-5 As shown, the embodiment of the present invention provides a horizontal hydraulic clamp for a complex aluminum shell, comprising a bottom plate 2 and a vertical plate 41 provided on the bottom plate 2;

[0040] Three lever hydraulic cylinders 39 are arranged side by side from left to right on the base plate 2; the lever hydraulic cylinders 39 on both sides are respectively arranged on the base plate 2 through the first mounting base; the middle lever hydraulic cylinder 39 is installed on the base plate 2 through the second mounting base; auxiliary support cylinders 16 are arranged on the sides of the first and second mounting bases and in parallel with the lever hydraulic cylinders 39; the pressure plate end of the lever hydraulic cylinder 39 can correspond to the top position of the auxiliary support cylinder 16; a second positioning pin 15 and a floating support rod 17 are arranged in parallel on the top of the second mounting base; the floating support rod 17 is located at the edge of the upper surface of the second mounting base. Multiple sequential valves 27 are arranged on the base plate 2; an oil circuit block 20 is arranged in a corner of the base plate 2; a left quick-change connector 22 and a right quick-change connector 21 are respectively arranged on the sides of the oil circuit block 20; an accumulator 42 is arranged on the upper side of the base plate 2; and a switch valve 23 is arranged on the top of the oil circuit block 20.

[0041] A first follow-up through hole and a second follow-up through hole are respectively provided on the vertical plate 41; the second follow-up through hole is located at the upper end of the first follow-up through hole; a third corner hydraulic cylinder 29 and two first corner hydraulic cylinders 28 are respectively provided on the side of the vertical plate 41 and the circumference of the first follow-up through hole; the third corner hydraulic cylinder 29 is located on the vertical plate 41 between the first follow-up through hole and the second follow-up through hole, and the third corner hydraulic cylinder 29 is located at the edge of the first follow-up through hole; when in use, the third corner hydraulic cylinder 29 is located at the bottom of the aluminum shell; the two first corner hydraulic cylinders 28 are symmetrically arranged on both sides of the lower end of the first follow-up through hole; a long-arm quick clamp 19 is provided on the upper right side of the vertical plate 41; the movable end of the long-arm quick clamp 19 can be pressed on the middle and upper part of the aluminum shell product. Before the sling is withdrawn, it is clamped with the long-arm quick clamp 19, which effectively eliminates the risk of the aluminum shell product falling, and is safe and reliable. Two linear clamping cylinders 25 are symmetrically embedded on the side of the vertical plate 41 and the upper end of the first conformal through hole; the top of the linear clamping cylinder 25 faces downward; the linear clamping cylinder 25 can push its top to act on the aluminum shell, pressing the aluminum shell onto the two first positioning pins 13; the conformal through hole of this embodiment can be changed according to different aluminum shell shapes, and the position of each hydraulic cylinder can also be changed according to the characteristics of different aluminum shells, so it can be applied to the milling, drilling, reaming, boring and other processing of most batch aluminum shell products.

[0042] A horizontal positioning plate 12 is provided on the side of the vertical plate 41 and on the upper side of the third corner hydraulic cylinder 29; first positioning pins 13 are respectively provided at both ends of the horizontal positioning plate 12; a second corner hydraulic cylinder 30 is provided on the upper side of the bottom plate 41; a third externally threaded support cylinder is provided at the end of the rotating pressure plate 31 of the second corner hydraulic cylinder 30; the top head of the third externally threaded support cylinder passes through the rotating pressure plate 31; second externally threaded support cylinders 36 are respectively embedded on the upper side of the vertical plate 41 and on both sides of the second corner hydraulic cylinder 30.

[0043] A first positioning block 10 and two second positioning blocks 9 are embedded in the side of the vertical plate 41. The tops of the first positioning block 10 and the second positioning block 9 are each provided with a textured surface. The two second positioning blocks 9 are located inside the first corner hydraulic cylinder 28, and a portion of each second positioning block 9 extends into the first conformal through-hole. The first positioning block 10 is located between the first conformal through-hole and the second conformal through-hole. The first positioning block 10 and the second positioning block 9 are respectively configured to correspond to the pressure plate positions of the third corner hydraulic cylinder 29 and the first corner hydraulic cylinder 28.

[0044] Two coarse limiting plates 5 are symmetrically arranged on the bottom plate 2 ; the two coarse limiting plates 5 are arranged on the bottom plate 2 via height blocks.

[0045] A coarse limiting rod 7 is provided on the vertical plate 41 and on the lower side of the second externally threaded support cylinder 36 ; two coarse limiting rods 7 are respectively located on both sides of the second conformal through hole.

[0046] A rib is provided between the vertical plate 41 and the bottom plate 2. A transverse plate is provided at the connection between the vertical plate 41 and the bottom plate 2; the outer edge of the transverse plate is located inside the second mounting base for easy installation.

[0047] The working principle of the utility model is as follows: First, the hydraulic clamp is hoisted onto the workbench 1 of the horizontal machining center, and the base plate 2 is positioned and clamped to the workbench 1. The aluminum shell blank is then hoisted into the clamp. The two square flange surfaces 3 on the side of the aluminum shell blank align with the two coarse limit plates 5, and the two upper side surfaces 6 align with the two coarse limit rods 7. The blank is then slowly moved inward, focusing on the contact between the large bottom surface 8 on the large flange side and the second positioning block 10 and the textured surfaces on the two first positioning blocks 9. The clamp then slowly descends, focusing on the contact between the horizontal positioning surface 11 inside the large flange side and the two first positioning pins 13 on the horizontal positioning plate 12. Furthermore, the arc surface 14 in the groove at the bottom of the circular flange side and the top surface of the second positioning pin 15 are in contact. Before contact, the arc surface 14 in the groove of the aluminum shell will first contact the floating support rod 17, then press the floating support rod 17 downward. Under the action of the internal spring force, the floating support rod 17 will continue to support the aluminum shell, thereby acting as a floating support. The aluminum shell is now positioned in the clamp.

[0048] Immediately pull the long-arm quick clamp 19 to initially clamp the aluminum shell. After confirming that the clamping is firm, remove the sling.

[0049] Next, plug the oil outlet pipe of the hydraulic station into the quick-change connector 21 on the right side of the oil block 20, and the oil return pipe into the quick-change connector 22 on the left side of the oil block. Then, turn on the switch valve 23 on the fixture and press the pressure switch of the hydraulic station to start pressurizing. First, the two linear clamping cylinders 25 opposite the horizontal positioning plate 12 start to operate, pushing the top heads of the two linear clamping cylinders 25 to press the aluminum shell onto the two first positioning pins 13. Then, under the action of the sequence valve 27, the two first and third rotary hydraulic cylinders 28 and 29 located in the middle part, which play the main clamping role, start to operate, rotating and moving the pressure plates of the first and third rotary hydraulic cylinders 28 and 29 downward to clamp the aluminum shell. At the same time, the second rotary hydraulic cylinder 30 located on the upper side of the small end also starts to operate, rotating the rotating pressure plate 31 of the second rotary hydraulic cylinder 30 and driving the second externally threaded support cylinder 32 to the outside of the small end.

[0050] Then, under the action of the sequence valve 27, the auxiliary support cylinder 16 on the inner side of the circular flange side starts to move, and the top of the auxiliary support cylinder 16 contacts the blank surface 35 behind the circular flange. At the same time, the two second externally threaded support cylinders 36 on both sides of the small end and the first externally threaded support cylinder 32 on the rotating pressure plate 31 also start to move, and their tops contact the circumferential blank surface 38 of the small end, thus completing the auxiliary support of the aluminum shell.

[0051] Afterwards, under the action of the sequence valve 27, the three lever hydraulic cylinders 39 that play an auxiliary clamping role start to move, driving the pressure plates of the lever hydraulic cylinders 39 to clamp the aluminum shell.

[0052] Finally, confirm that all positioning and clamping components are properly secured. If qualified, close the hydraulic station pressure switch and the on / off valve 23 on the fixture, then remove the hydraulic station's oil pipe. At this point, the accumulator 42 located in the vertical plate 41 begins to function, balancing the oil pressure within the fixture and maintaining it within the set range, ensuring stable clamping. This completes the clamping of the aluminum shell product, allowing commissioning and processing.

[0053] After the aluminum shell product is processed, first blow away any chips, cutting fluid, and other residues from the fixture. Then, plug the hydraulic station's oil outlet pipe into the left quick-change connector 22 of the oil block 20, and the oil return pipe into the right quick-change connector 21. Turn on the on / off valve 23 on the fixture, press the hydraulic station pressure switch, and begin pressure relief. The pressure plates on the first, second, and third rotary hydraulic cylinders 29 and lever hydraulic cylinders 39 return to their initial positions. The rams of all linear clamping cylinders 25 also return to their initial positions. The rams of the first, second, and auxiliary support cylinders 32, 36, and 16 also return to their free positions. Finally, close the pressure switch on the press station and the on / off valve 23 on the fixture, and remove the hydraulic station's oil pipes.

[0054] Finally, slowly remove the aluminum shell product. Repeat the above steps when installing the product again.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications to the technical solutions described in the above embodiments, or equivalent replacement of some or all of the technical features therein, do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A horizontal hydraulic clamp for complex aluminum shells, characterized by: It comprises a bottom plate (2) and a vertical plate (41) arranged on the bottom plate (2); Three lever hydraulic cylinders (39) are provided on the base plate (2); a plurality of sequence valves (27) are provided on the base plate (2); an oil passage block (20) is provided at a corner of the base plate (2); a left quick-change joint (22) and a right quick-change joint (21) are provided on the side of the oil passage block (20); an accumulator (42) is provided on the upper side of the base plate (2); A first conformal through hole and a second conformal through hole are respectively provided on the vertical plate (41); a third angular hydraulic cylinder (29) and two first angular hydraulic cylinders (28) are respectively provided on the side surface of the vertical plate (41) and the circumference of the first conformal through hole; a long-arm quick clamp (19) is provided on the upper right side of the vertical plate (41); two linear clamping cylinders (25) are symmetrically embedded on the side surface of the vertical plate (41) and the upper end of the first conformal through hole; A horizontal positioning plate (12) is provided on the side of the vertical plate (41) and on the upper side of the third corner hydraulic cylinder (29); first positioning pins (13) are provided at both ends of the horizontal positioning plate (12); a second corner hydraulic cylinder (30) is provided on the upper side of the bottom plate (41); a third externally threaded support cylinder is provided at the end of the rotating pressure plate (31) of the second corner hydraulic cylinder (30); the top of the third externally threaded support cylinder passes through the rotating pressure plate (31); and second externally threaded support cylinders (36) are embedded on the upper side of the vertical plate (41) and on both sides of the second corner hydraulic cylinder (30).

2. The horizontal hydraulic clamp for complex aluminum shells according to claim 1 is characterized in that: A second positioning block (10) and two first positioning blocks (9) are embedded in the side surface of the vertical plate (41).

3. The horizontal hydraulic clamp for complex aluminum shell according to claim 2, characterized in that: The tops of the first positioning block (9) and the second positioning block (10) are respectively provided with a reticulated surface.

4. The horizontal hydraulic clamp for complex aluminum shells according to claim 1, characterized in that: Two coarse limiting plates (5) are symmetrically arranged on the bottom plate (2).

5. The horizontal hydraulic clamp for complex aluminum shells according to claim 1, characterized in that: Three lever hydraulic cylinders (39) are arranged in parallel; the lever hydraulic cylinders (39) on both sides are arranged on the base plate (2) through a first mounting base; the middle lever hydraulic cylinder (39) is arranged on the base plate (2) through a second mounting base; auxiliary support cylinders (16) are respectively arranged on the side surfaces of the first mounting base, the second mounting base, and the side surfaces of the lever hydraulic cylinders (39); a second positioning pin (15) and a floating support rod (17) are arranged in parallel on the top of the second mounting base.

6. The horizontal hydraulic clamp for complex aluminum shells according to claim 1, characterized in that: A coarse limiting rod (7) is provided on the vertical plate (41) and on the lower side of the second externally threaded support cylinder (36).

7. The horizontal hydraulic clamp for complex aluminum shells according to claim 1, characterized in that: A rib plate is provided between the vertical plate (41) and the bottom plate (2).

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